package com.cd.controller;

import java.util.Date;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import com.cd.bean.Guide;
import com.cd.service.guide.GuideService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;

/**
 * 种养指导
 *@Author zhk
 *@Date 2018-1-2
 **/
@Controller
@RequestMapping("/guide")
public class GuideController {

	@Autowired
	GuideService guideService;
	

	/**
	 * 前台列表（带分页）
	 * @param pn
	 * @return
	 * @throws Exception
	 */
	@RequestMapping("/listGuide")
	public ModelAndView findAllGuide(@RequestParam(value = "pn",defaultValue="1")Integer pn) throws Exception {
		ModelAndView mv = new ModelAndView();
		PageHelper.startPage(pn, 8);//开始分页
	    List<Guide> list = guideService.listAll();
		PageInfo page = new PageInfo(list,5);//设置分页信息
		mv.addObject("pageInfo", page);
		mv.setViewName("info/zyzd/zyzd");
		return mv;
	}
	 
	/**
	 * 通过id查询
	 * @param id
	 * @return
	 * @throws Exception
	 */
	@RequestMapping("/findById")
	public ModelAndView findById(@RequestParam(value = "id") Integer id) throws Exception {
		ModelAndView mv = new ModelAndView();
		Guide guide = null;
		Guide nextGuide = null;
		Guide preGuide = null;
		int total = guideService.size();//获取总记录
		int nextId = id+1;
		int preId = id-1;
		if(id <= total){
			if(id >= 1){
				guide = guideService.findById(id);//当前条
				preGuide = guideService.findById(preId);//前一条
				nextGuide = guideService.findById(nextId);//下一条	
			}else {
				guide = guideService.findById(id+1);
			}
		}else{
			guide = guideService.findById(id-1);
		}
		mv.addObject("guide", guide);
		mv.addObject("nextGuide", nextGuide);
		mv.addObject("preGuide", preGuide);
		mv.setViewName("info/zyzd/zyzd_show");
		return mv;
	}
	
	/**
	 * 种养指导列表（后台）
	 * @param pn
	 * @return
	 * @throws Exception
	 */
	@RequestMapping("/list")
	public ModelAndView list(@RequestParam(value = "pn",defaultValue="1")Integer pn) throws Exception {
		ModelAndView mv = new ModelAndView();
		PageHelper.startPage(pn, 10);//开始分页,每页10条记录
	    List<Guide> list = guideService.listAll();
		PageInfo page = new PageInfo(list,5);//设置分页信息
		mv.addObject("pageInfo", page);
		mv.setViewName("admin/zyzd/guide_list");
		return mv;
	}
	/**
	 * 去添加页面
	 * @return
	 */
	@RequestMapping("/goAdd")
	public ModelAndView saveView(){
		ModelAndView mv=new ModelAndView();
		mv.setViewName("admin/zyzd/guide_add");
		return mv;
   }
	
	/**
	 * 新增
	 * @param title
	 * @param content
	 * @param level
	 * @return
	 * @throws Exception
	 */
	@RequestMapping("/save")
	public ModelAndView save(@RequestParam(value="GUIDE_TITLE")String title,
            @RequestParam(value="GUIDE_CONTENT")String content,
            @RequestParam(value="GUIDE_LEVEL")Integer level,@RequestParam(value="GUIDE_RESOURCE")String resource) throws Exception {
		ModelAndView mv = new ModelAndView();
		//int total = guideService.size();
		Guide guide = new Guide();
		//guide.setGUIDE_ID(total+1);
		guide.setGUIDE_TITLE(title);
		guide.setGUIDE_CONTENT(content);
		guide.setGUIDE_LEVEL(level);
		guide.setPUBLISH_DATE(new Date());
		guide.setGUIDE_RESOURCE(resource);
		guideService.save(guide);
		mv.setViewName("redirect:list.do");
		return mv;
	}
	/**
	 * 删除
	 * @param id
	 * @return
	 * @throws Exception
	 */
	@RequestMapping("/delete")
	public ModelAndView delete(@RequestParam(value="id")Integer id) throws Exception{
		ModelAndView mv = new ModelAndView();
		guideService.delete(id);
		mv.setViewName("redirect:list.do");
		return mv;
	}
	
	/**
	 * 去编辑界面
	 * @param id
	 * @return
	 * @throws Exception
	 */
	@RequestMapping("/goEdit")
	public ModelAndView goEdit(@RequestParam(value="id")Integer id) throws Exception {
		ModelAndView mv = new ModelAndView();
		Guide guide = guideService.findById(id);
		mv.addObject("guide", guide);
		mv.setViewName("admin/zyzd/guide_edit");
		return mv;
	}
	
	/**
	 * 编辑
	 * @param id
	 * @param title
	 * @param content
	 * @param level
	 * @return
	 * @throws Exception
	 */
	@RequestMapping("/edit")
	public ModelAndView eidt(@RequestParam(value="GUIDE_ID")Integer id,@RequestParam(value="GUIDE_TITLE")String title,
			                 @RequestParam(value="GUIDE_CONTENT")String content) throws Exception {
			ModelAndView mv = new ModelAndView();
            Guide guide = guideService.findById(id);
            guide.setGUIDE_ID(id);
            guide.setGUIDE_TITLE(title);
            guide.setGUIDE_CONTENT(content);
            //guide.setGUIDE_LEVEL(level);
            guide.setPUBLISH_DATE(new Date());
            guideService.edit(guide);
			mv.setViewName("redirect:list.do");
		return mv;
	}

	/**
	 * 去查看内容页面(后台)
	 * @param id
	 * @return
	 * @throws Exception
	 */
	@RequestMapping("/goContent")
	public ModelAndView goContent(@RequestParam(value="id")Integer id) throws Exception {
		ModelAndView mv = new ModelAndView();
		Guide guide = guideService.findById(id);
		mv.addObject("guide", guide);
		mv.setViewName("admin/zyzd/guide_content");
		return mv;
	}
	
	
	/**
	 * 
	 * 批量删除
	 * @param request
	 * @param response
	 */
	@RequestMapping("/del")  
	public void batchDeletes(HttpServletRequest request, HttpServletResponse response) {  
	    String items = request.getParameter("delitems");
	    System.out.println(items);  
	    String[] strs = items.split(",");  
	  
	    for (int i = 0; i < strs.length; i++) {  
	        try {  
	            int a = Integer.parseInt(strs[i]);  
	            guideService.delete(a);  
	        } catch (Exception e) {  
	        }  
	    }  
	} 
	
}
